Typewriting machine



Nov. 27, 1928.

H. S. LASHER TYPEWRITING MACHINE Filed NOV. 7,

//7 Ver? for www 415W Affe/w Patented Nov. 27, 1928. v

UNITED STATES N g 1,693,148 PATENTY OFFICE.

HIRAM S. LASHER, OF BRONX, NEW YORK, ASSIGNOR TO UNDERWOOD ELLIOTTFISHERCOMPANY, or NEW YORK, N. Y.,

A CORPORATION OF DELAWARE.

r'IIYIEEWRITIN G MACHINE.

Application filed November 7, 1925.

This invention relates to a fan-fold webtyping machine of the well-knownUnderwood type. In said machine a longitudinally folded web isinterleaved with short carbons, and is fed around the platen of themachine to be typed upon, the platen being elevated at intervals tostrip the carbons.

It has been customary to split the folds of the web during thecarbon-shifting operation by means of knives mounted on thecarbon-carrying blades. Since there is a great length of split webbetween the platen and the splitting blades, it is diiiicult to keep theprinted forms on the plies of the web in proper registration inV somecases.

In this invention, novel means are provided whereby the web will besplit by means of an independent splitting device, which may be mountedon a carbon-carrier on a forward extension thereof, so that the web willbe conducted in unsplit condition up to a point considerably nearer theplaten of the machine. Said splitting means may comprise a plurality ofknives having cutting edges at an angle, said knives being laterallyadjustable, so as to accommodate different widths of web. VThe knives mai be rockable upon studs to facilitate the individual threading of theknives between the plies of the web.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a cross-sectional view in elevation through the center of anUnderwood fan-fold typewriting machine, having the invention appliedthereto, and shows the web in typing position.

Figure 2is a plan view of the same ma` chine as illustrated in vFigure1.

Figure 3 is a diagrammatic view,` and shows the platen in its elevated`position, the web being straightened out for the carbonshiftingoperation.

Figure 4 is a cross-sectional view in elevation through the supports fortheweb-splitting knives. r

According to the method of handling the work in this'invention, afan-fold web 10 is drawn up from a supply at the rear of the machine,and passed over a supporting member 11, the plies 12 of the web beinginterleaved with carbons 13 which are supported at the rear thereof bymeans of carbon-blades 14. The plies of the .web are also interleaved.with splitting or slitting knives 15, which are Serial No. 67,544

rockably mounted on supporting studs 16, adjusta ly mountedoncross-rails 17 y The leading edges of the carbons and of the web arealigned so as to form a pack, which is inserted downwardly over a table19 and under a platen 20, and is fed therearound by means of feed-rolls21. The platen is then rotated to position the web past the printingpoint and over a front table 22, as shown .in Figure 1, so that thefirst form may be typed upon by means of-type-bars 23.

After completely typing the first form, the platen is elevated, as shownin Figure 3, and the leading edge of the web is drawn forwardly to agage 25, lthe carbon-carrier beingthen moved rearwardly, so as to resentthe carbons to a. fresh lform of the web.

After stripping the carbons, the platen is again lowered to its normalposition, and the first form is torn off against a knife 26. Other formsare treated ina similar manner. In order to facilitate the elevation ofthe laten, the same is mounted on a platen-axle 2g journaled in endlplates 28 of a platen-frame. Said platen-frame is rockably mounted on afixed shaft29, and is locked inits normal position against a cross-bar38 by means of a clamping member, not shown.

l The knives are rockably mounted upon the studs 16, which have squareheads 1t the bottom thereof, designed for sliding engagementwithcross-rails 17. The rails are widths, novel means includingfinger-screws 18 are provided to secure the knivespupon an angular blockor support 33 and for simultaneously securingthe block to the rails 17.

The knives 15 are provided with heels 34designed to engage with plates35 upwardl extending from the block 33, so as to hol the knives at apredeterminedangle, as shown in Figure 2.

The Underwood machine is provided with vmeans for quickly removing theweb `and its pins, having slots designed to engage with locking members39 which are pivotally mountedon the truck-plate at 40. The'truck-.plate 86 is .mounted on wheels Lll whichengage with rails l2, thewheels themselves being mounted on secondary plates 43, which lli Vchinehaving a platen, means for conduct i are secured to the truck-plate bymea-ns of screws, as detachable units.

The web is laterally guided between side gages l adjustably mounted onthe supporting memberI ll, and also by means of gagesor guides 45adjustably mounted yon the blocks 32 ofthe carboncarrier. rlhecarbon-carrier is `limited in its rearward travel by means of astopegage i6 settably mounted on one of the rails 42,thefcarboni-carrier being stopped by Athe gage when the same is movedrearwardly by means of aliandle 4.7 .3L Y f l Variations may be resoiIed ,to within the scopeofvthe invention, and portions kof lthe -im- `,provementsmay be used without others.

Having thus described my invention, I

secured to the plate claim l.' The combination with a typewritingmaalongitudinally fan-folded web to the platen,

y andmcans for displacing a plurality of carbons interleaved with theplies of the web, said last-,mentioned means including a carrier havinga plate and means for attaching .the Acarbons yto said plate, of meansfor separating the plies of the web, said last-mentionedv means beingadjustably mounted upon said plate, at a V,point between ,the means fonattaclnn ,the cai-bons andthe platen.

` 2. T 1e combination with a typewriting inachine having a platen, meansfor conductingl a ,web having' a ,plurality -of longitudinallyfanlfolded vpliewto the platen, and means for controlling the positionof ca rbons inten leaved with the plies of the web, of means forsepafratingv the plies of the web before insertion around the platen,said last-mentioned means including a series of blades having cuttingedges, the blades being` interleaved with V:the plies'of the web andbeing effective to severv the Vplie s at ,the folds thereof, said blades,being mounted to reciprocate with the means fojrcontrolling theposition of the carbons between the carbon-blades and the platen. 'i i3.v The combination with a typewriting machine havinga vcarbon-carrierarranged vto for holding andshifting a plurality of carbons, andmeansfor splitting the plies of a fan-'folded web, said last-mentioned meansincluding aplurality of knives arranged upon the carbon-carrier soas tosplitthe plies during the carbon-shifting operation, said knives being'mounted upon the carbon-carrier at a point between the carbon-holdingmeans and I the platen of the machine.

5. ln a typewriting machine, the combination with a carriage vand aplaten, of means for directing a. fanfolded web toward the platen, a.carbon-sheet-holding 'device arranged to be reciprocated on saidcarriage, said device including bars extending from opposite sidesbetween the |folds of the web Lto which theends of the carbon's aresecured, and means `for splitting the plies of the web,saidvlast-m'entioned means including a plurality of knives mounted uponsaid-device at a tpoint between the/bars :and the platen.Y

6. In a typewriting machine, thecolnbina- `tion with al carriage and aplaten, of a.carbon sheet-holding device arranged to be reciprocated onsaid carriage, Asaid device 'including carbon-,carrying bars extendingfrom oppo- Iite sides between the folds of 'a fan-fold web,

fold-slitters carried by -said device, between also carried by saiddevice for directing 'the web `to lthe bars and to the fold-slitters.v

T. In a ,typewriting machine, the combinaion withacarriage and a platen,of means for directinga fan-,folded web toward the platen, acarbon-sheet-holding device arranged to be reciprocated von saidcarriage, said device including bars extending from opposite sidesbetween the foldsof the web yto which the ends of the carbons aresecured, and means carried by said device, for splitting the plies ofthe web, said last-mentioned means including knives arranged tointerleave with the plies of the web, said knives beingroc-lra'blymountf Ved upon studs to facilitate the individual threading of theknivesbetween the plies, supports upon which the studs are mounted, andcross-rails carried by said device, the supports being adjustablysecured to the crossrails. Y y

y8.- ln a typewriting machine, the combination'witha carriage andaplaten, of means for directing a fan-folded web toward the platen, acarbon-sheetfholding device arranged to be iecviproeated .on saidcarriage, .said device including bars extending from opposite sidesbetween the Yfolds of the web to which the ends of the carbons aresecured7 means for splitting the plies of the web, said last-mentionedmeans including 'knives arranged vto interleave with Vthe plies of theweb, said knives being rock- ;ably mounted upon studs to facilitate theindividual threading of the knives between the plies, the studs beingadjustably mounted upon said carbon-sheet-holdin,9;V device, and meansfor simultaneously locking the knives and the studs upon which theknives are rockably mounted. Y

9. In a fan-fold typewritinof machine, the combination with a platen ancY a carbon-carrier, of fold-slitters at the front of the carbon-carrier,and a movable truck upon Which the carboncarrier and the fold-slittersare mounted.

10. In a fan-fold typewriting machine, the combination with a platen anda carbon-carrier, movable to strip the carbons of fold-slitterstraveling with the carbon-carrier and engaging the Web-folds betweensaid platen and said carbon-carrier.

Il. In a. fan-fold typewriting machine, the combination with a platenand a carbon-carrier movable to strip the carbons, of fold-slitterstraveling with the carbon-carrier and engaging the Web-folds betweensaid platen and said carbon-carrier, and a stop limiting thecarbon-stripping travel of said carbon-car rie-r and the stroke of saidfold-slitters.

12. In a fan-fold typewriting machine, the combination With a platen anda carboncar rier movable to strip the carbons, of fold-slitterstraveling With the carbon-carrier and engaging the Web-folds betweensaid platen and said carboncarrier, a stop limiting the carbon-strippingtravel of said carbon-carrier and the stroke of said old-slitt-ers, andsideedge guides for the web.

13. The combina-tion with a. typevvriting machine having a platen, meansfor guiding a longitudinally fan-folded Web to said platen, a carboncarrier for shifting the position of carbons interleaved with the pliesof said Web,

and means for elevating the platen during the carbon-shifting operation,of means at the front of the carbon carrier for slitting the plies ofthe web previously to the insertion of the web around the platen, saidlastfmentioned means being connected to move with the carbon-carrier.

14. The combination with a typewriting machine having a platen, aplaten-frame therefor, means for elevating said platen by rocking saidplaten-frame, and a web-course at the introductory side of the platenfor conducting a longitudinally fan-folded web, hav- Y l ing a pluralityof lies, to the platen, said course having rails or guiding acarbon-carrier arranged to reciprocate upon said rails, of means forslitting the plies of the Web at the folds thereof, said carbon-carrierand lastmentioned means including a truc-k arranged to reciprocate uponsaid rails for carrying them, said truck including a late, Wheels undersaid plate to facilitate t e sliding of ranged upon the carbon-carrierat a point between the carbon-holding means and the platen so as to slitthe plies during the carbonshifting operation.

HIRAM s. LAsHER.

